Possible Causes
NOTE:
Low pressure EGR differential pressure sensor rationality check, pressure below low threshold (-20hPa)
- The powertrain control module has determined failures where some circuit quantity, reported via serial data, is below a specified range
- Low pressure EGR differential pressure sensor signal circuit short circuit to ground
- Connector is disconnected, connector pin is backed out, connector pin corrosion
- Low pressure EGR differential pressure sensor failure